future interests

See Rule in Shelley's Case.

A rule of law that may apply to certain future interests.  Prohibited the conveyance of a future interest to the heirs of the grantee who received the possessory estate.  If the grantor tried to convey a future interest to the heirs of the grantee, the interest was considered to be to the grantee and not in the heirs of the grantee.

A future interest that the grantor keeps.  It follows an estate subject to a condition subsequent. 

Example:  From O to A, on the condition that A does not smoke.  If A smokes, O has the right to come in and reclaim the land.  Note that O must actually take action to get the land back

See:  Future Interest

Relatives, such as uncles, aunts, siblings, or cousins, other than ancestors and issue.

When a particular individual that holds a future interest is alive and may be identified.  The heirs of a person who is still alive are unascertained.

A pair of remainders that have opposite conditions precedent.